High-energy X-ray radiography investigation on the ejecta physics of laser shock-loaded tin
Weihua He,
Tao Xi,
Min Shui,
Minghai Yu,
Yongqiang Zhao,
Yuchi Wu,
Yuqiu Gu,
Genbai Chu,
Jianting Xin
Affiliations
Weihua He
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Tao Xi
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Min Shui
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Minghai Yu
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Yongqiang Zhao
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Yuchi Wu
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Yuqiu Gu
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Genbai Chu
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
Jianting Xin
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, P. R. China
This study is devoted to the high-energy X-ray radiography investigation on the ejecta physics of laser shock-loaded tin. The ejecta were generated via laser shock loaded tin under sequential shock-breakout pressures by high-power nanosecond lasers. A high-energy X-ray (50∼200keV) source was created to radiograph the high dense ejecta. Due to its strong penetration, high-quality radiograph images were obtained with detailed inner information and topology structure of ejecta. The areal density distribution and total mass of ejecta were further inferred. It was found that the ejecta from laser shock-loaded tin under sequential pressures show obvious difference in density distribution between the samples in a solid state and in a melt-on-release state. In addition, the total mass of ejecta was demonstrated to increase sharply when the breakout pressure is larger than the onset of melt-on-release for tin. Such increase inferred a solid-liquid phase transition of ejecta production mechanism.
